Ok thought my D3 had bad pico fuse, not sure now. The rear rca's work fine but the front and sub rca's have really bad noise. I've tried grounding the front and sub rca's but that had no effect on the noise. I've tried brand new rca's, that didn't help. Tried a different head unit and all noise went away.

I like my D3 but if I can't figure this out, its going to have to go!

Any help is appreciated.

P.S. I tried searching but couldn't find anything that was close to my problem.

Think the rca harness itself is bad?

Think the rca harness itself is bad?

I had the same issue. I replace the interface and it fixed it.

I had the same issue. I replace the interface and it fixed it.

Cool, I'll try that before I throw this thing out the window. LOL!